Garrett Graphic Target Profiling 1350 Owner's Manual page 26

above the ground. Do not allow the searchcoil to
raise or tilt at the end of the swing, much like a "golf"
swing. This can significantly degrade detection
performance. Scan the searchcoil at a rate of about
two (2) to five (5) feet per second.
4. The GTP 1350 will produce an audio signal and
illuminate a Target ID cursor on the LCD screen
when metal is detected. The Target ID cursor
will appear directly below the Target ID Guide
to reference the probable identity of the target.
Highly mineralized soils can occasionally produce
improper Target ID readings. Raising the searchcoil
an inch or two as you scan over such soils can be
helpful. Remember to keep the searchcoil level and
at a constant height. Be aware that encrustation,
or patina, may also affect conductivity of a target
resulting in improper Target ID.
5. When a target is located, make two (2) or
three (3) repeated scans over it to determine its
approximate location.
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Garrett Metal Detectors